53263243 has 4 divisors (see below), whose sum is σ = 58105368. Its totient is φ = 48421120.

The previous prime is 53263211. The next prime is 53263297. The reversal of 53263243 is 34236235.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53263243 - 2⁵ = 53263211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53263543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2421046 + ... + 2421067.

It is an arithmetic number, because the mean of its divisors is an integer number (14526342).

Almost surely, 2^53263243 is an apocalyptic number.

53263243 is a deficient number, since it is larger than the sum of its proper divisors (4842125).

53263243 is a wasteful number, since it uses less digits than its factorization.

53263243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842124.

The product of its digits is 12960, while the sum is 28.

The square root of 53263243 is about 7298.1670986625. The cubic root of 53263243 is about 376.2494454431.

Adding to 53263243 its reverse (34236235), we get a palindrome (87499478).

The spelling of 53263243 in words is "fifty-three million, two hundred sixty-three thousand, two hundred forty-three".